Short and dirty: My IT-school got their Windows 7 to be fairly minimalized, which I dig a lot. In particular, their starmenu consisted of nothing more than several subfolders leading to programs (shortcuts of them, rather).
I don't want to completely strip Windows 10's startmenu, I do wonder if something like this was possible though. I've tried googling this idea, but I've only found ways of adding tiles leading to folders - which isn't my intention. I want to be able to open a submenu (let it be folders, even) that allow me to access shortcuts without having to open the folder in the File Explorer.